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News for Norther Colorado and the world

Thursday, May 26, 2016

Posts Tagged ‘star’

EarthSky Tonight—Algol, a famous variable star,

EarthSky Tonight—Algol, a famous variable star, dimmest tonight

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org Algol – perhaps the most famous variable star in all the heavens – will be dimmest tonight at 8:29 p.m. Mountain Standard Time. Even at its dimmest, Algol is still bright enough to see with the eye. Algol is what astronomers call an eclipsing binary star. In other words, the single point of light that we see as Algol is really two stars. Like clockwork, these two stars revolve around each other every 2.87 ... Full Story

EarthSky Tonight—Nov 25, Find the Water Jar of

EarthSky Tonight—Nov 25, Find the Water Jar of Aquarius to the west of Jupiter

Courtesy of EarthSky A Clear Voice for Science Visit EarthSky at www.EarthSky.org Will you spot the Water Jar in the constellation Aquarius to the west (right) of the blazing planet Jupiter tonight? You are only likely to see the Y-shaped Water Jar and the stars of Aquarius if you have access to a dark sky. From downtown in a major city, you have a good chance of spotting Jupiter at nightfall and early evening, but that might be about it. Look for Jupiter to blaze in the southern sky at ... Full Story

EarthSky Tonight—Nov 1, Looking out our Milky Way

EarthSky Tonight—Nov 1,  Looking out our Milky Way galaxy’s south window

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org On this evening with no moon, use the planet Jupiter and Great Square of Pegasus to star-hop to our galaxy’s south window. In other words, you will be looking away from the flat plane of the Milky Way – where most of our galaxy’s stars reside – southward toward intergalactic space. 
 Can you show me a detailed view of the Milky Way center? Here is how to do it. Every year in early November, the Great Square of Pegasus ... Full Story

EarthSky Tonight—Oct. 31, Arcturus is a Halloween

EarthSky Tonight—Oct. 31, Arcturus is a Halloween ghost of the summer sun

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Every Halloween – and a few days before and after – the brilliant star Arcturus sets at the same time and on the same spot on the horizon as the summer sun. What’s more, this star rises at the same time and at the same place on the horizon as the sun does during the dog days of summer. So – around Halloween – it is as if Arcturus is a fainter ghost of the summer sun. At mid-northern latitudes, Arcturus now sets about 2 ... Full Story

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